well below the 11% george w. bush received when he ran against john kerry in 2004. now, the president's support and his approval ratings remain high among african-americans, but democrats are worried about turnout. and romney's hoping his economic message will resonate, at least to the point that voters aren't motivated to turn out against him. jan crawford, cbs news, houston. >>> today the cbs news, charlie rose will sit down with an exclusive interview with president and mrs. obama which you'll see portions beginning on friday on "cbs this morning" and then on cbs sunday morning. >>> congressman's jesse jackson's unexplained absence from the house continues to raise questions this morning. his office says he's receiving intensive medical treatment for a mood disorder. tara mergener reports from washington, d.c. >> representative jesse jackson, jr., has been out on a leave of absence for more than a month now with little explanation as to why. more than two weeks after abruptly leaving his office issued a cryptic statement saying mr. jackson was suffering from exha